1*b1cdbd2cSJim Jagielski /************************************************************** 2*b1cdbd2cSJim Jagielski * 3*b1cdbd2cSJim Jagielski * Licensed to the Apache Software Foundation (ASF) under one 4*b1cdbd2cSJim Jagielski * or more contributor license agreements. See the NOTICE file 5*b1cdbd2cSJim Jagielski * distributed with this work for additional information 6*b1cdbd2cSJim Jagielski * regarding copyright ownership. The ASF licenses this file 7*b1cdbd2cSJim Jagielski * to you under the Apache License, Version 2.0 (the 8*b1cdbd2cSJim Jagielski * "License"); you may not use this file except in compliance 9*b1cdbd2cSJim Jagielski * with the License. You may obtain a copy of the License at 10*b1cdbd2cSJim Jagielski * 11*b1cdbd2cSJim Jagielski * http://www.apache.org/licenses/LICENSE-2.0 12*b1cdbd2cSJim Jagielski * 13*b1cdbd2cSJim Jagielski * Unless required by applicable law or agreed to in writing, 14*b1cdbd2cSJim Jagielski * software distributed under the License is distributed on an 15*b1cdbd2cSJim Jagielski * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16*b1cdbd2cSJim Jagielski * KIND, either express or implied. See the License for the 17*b1cdbd2cSJim Jagielski * specific language governing permissions and limitations 18*b1cdbd2cSJim Jagielski * under the License. 19*b1cdbd2cSJim Jagielski * 20*b1cdbd2cSJim Jagielski *************************************************************/ 21*b1cdbd2cSJim Jagielski 22*b1cdbd2cSJim Jagielski 23*b1cdbd2cSJim Jagielski 24*b1cdbd2cSJim Jagielski #ifndef _RTL_ALLOC_H_ 25*b1cdbd2cSJim Jagielski #define _RTL_ALLOC_H_ 26*b1cdbd2cSJim Jagielski 27*b1cdbd2cSJim Jagielski # include <sal/types.h> 28*b1cdbd2cSJim Jagielski 29*b1cdbd2cSJim Jagielski #ifdef __cplusplus 30*b1cdbd2cSJim Jagielski extern "C" { 31*b1cdbd2cSJim Jagielski #endif 32*b1cdbd2cSJim Jagielski 33*b1cdbd2cSJim Jagielski 34*b1cdbd2cSJim Jagielski /** Allocate memory. 35*b1cdbd2cSJim Jagielski @descr A call to this function will return NULL upon the requested 36*b1cdbd2cSJim Jagielski memory size being either zero or larger than currently allocatable. 37*b1cdbd2cSJim Jagielski 38*b1cdbd2cSJim Jagielski @param Bytes [in] memory size. 39*b1cdbd2cSJim Jagielski @return pointer to allocated memory. 40*b1cdbd2cSJim Jagielski */ 41*b1cdbd2cSJim Jagielski void * SAL_CALL rtl_allocateMemory ( 42*b1cdbd2cSJim Jagielski sal_Size Bytes 43*b1cdbd2cSJim Jagielski ) SAL_THROW_EXTERN_C(); 44*b1cdbd2cSJim Jagielski 45*b1cdbd2cSJim Jagielski 46*b1cdbd2cSJim Jagielski /** Reallocate memory. 47*b1cdbd2cSJim Jagielski @descr A call to this function with parameter 'Ptr' being NULL 48*b1cdbd2cSJim Jagielski is equivalent to a rtl_allocateMemory() call. 49*b1cdbd2cSJim Jagielski 50*b1cdbd2cSJim Jagielski A call to this function with parameter 'Bytes' being 0 51*b1cdbd2cSJim Jagielski is equivalent to a rtl_freeMemory() call. 52*b1cdbd2cSJim Jagielski 53*b1cdbd2cSJim Jagielski @see rtl_allocateMemory() 54*b1cdbd2cSJim Jagielski @see rtl_freeMemory() 55*b1cdbd2cSJim Jagielski 56*b1cdbd2cSJim Jagielski @param Ptr [in] pointer to previously allocated memory. 57*b1cdbd2cSJim Jagielski @param Bytes [in] new memory size. 58*b1cdbd2cSJim Jagielski @return pointer to reallocated memory. May differ from Ptr. 59*b1cdbd2cSJim Jagielski */ 60*b1cdbd2cSJim Jagielski void * SAL_CALL rtl_reallocateMemory ( 61*b1cdbd2cSJim Jagielski void * Ptr, 62*b1cdbd2cSJim Jagielski sal_Size Bytes 63*b1cdbd2cSJim Jagielski ) SAL_THROW_EXTERN_C(); 64*b1cdbd2cSJim Jagielski 65*b1cdbd2cSJim Jagielski 66*b1cdbd2cSJim Jagielski /** Free memory. 67*b1cdbd2cSJim Jagielski @param Ptr [in] pointer to previously allocated memory. 68*b1cdbd2cSJim Jagielski @return none. Memory is released. Ptr is invalid. 69*b1cdbd2cSJim Jagielski */ 70*b1cdbd2cSJim Jagielski void SAL_CALL rtl_freeMemory ( 71*b1cdbd2cSJim Jagielski void * Ptr 72*b1cdbd2cSJim Jagielski ) SAL_THROW_EXTERN_C(); 73*b1cdbd2cSJim Jagielski 74*b1cdbd2cSJim Jagielski 75*b1cdbd2cSJim Jagielski /** Allocate and zero memory. 76*b1cdbd2cSJim Jagielski @descr A call to this function will return NULL upon the requested 77*b1cdbd2cSJim Jagielski memory size being either zero or larger than currently allocatable. 78*b1cdbd2cSJim Jagielski 79*b1cdbd2cSJim Jagielski @param Bytes [in] memory size. 80*b1cdbd2cSJim Jagielski @return pointer to allocated and zero'ed memory. 81*b1cdbd2cSJim Jagielski */ 82*b1cdbd2cSJim Jagielski void * SAL_CALL rtl_allocateZeroMemory ( 83*b1cdbd2cSJim Jagielski sal_Size Bytes 84*b1cdbd2cSJim Jagielski ) SAL_THROW_EXTERN_C(); 85*b1cdbd2cSJim Jagielski 86*b1cdbd2cSJim Jagielski 87*b1cdbd2cSJim Jagielski /** Zero and free memory. 88*b1cdbd2cSJim Jagielski @param Ptr [in] pointer to previously allocated memory. 89*b1cdbd2cSJim Jagielski @param Bytes [in] memory size. 90*b1cdbd2cSJim Jagielski @return none. Memory is zero'ed and released. Ptr is invalid. 91*b1cdbd2cSJim Jagielski */ 92*b1cdbd2cSJim Jagielski void SAL_CALL rtl_freeZeroMemory ( 93*b1cdbd2cSJim Jagielski void * Ptr, 94*b1cdbd2cSJim Jagielski sal_Size Bytes 95*b1cdbd2cSJim Jagielski ) SAL_THROW_EXTERN_C(); 96*b1cdbd2cSJim Jagielski 97*b1cdbd2cSJim Jagielski 98*b1cdbd2cSJim Jagielski /** Opaque rtl_arena_type. 99*b1cdbd2cSJim Jagielski */ 100*b1cdbd2cSJim Jagielski typedef struct rtl_arena_st rtl_arena_type; 101*b1cdbd2cSJim Jagielski 102*b1cdbd2cSJim Jagielski #define RTL_ARENA_NAME_LENGTH 31 103*b1cdbd2cSJim Jagielski 104*b1cdbd2cSJim Jagielski 105*b1cdbd2cSJim Jagielski /** rtl_arena_create() 106*b1cdbd2cSJim Jagielski * 107*b1cdbd2cSJim Jagielski * @param pName [in] descriptive name; for debugging purposes. 108*b1cdbd2cSJim Jagielski * @param quantum [in] resource allocation unit / granularity; rounded up to next power of 2. 109*b1cdbd2cSJim Jagielski * @param quantum_cache_max [in] max resources to cache; rounded up to next multiple of quantum; usually 0. 110*b1cdbd2cSJim Jagielski * @param source_arena [in] passed as argument to source_alloc, source_free; usually NULL. 111*b1cdbd2cSJim Jagielski * @param source_alloc [in] function to allocate resources; usually rtl_arena_alloc. 112*b1cdbd2cSJim Jagielski * @param source_free [in] function to free resources; usually rtl_arena_free. 113*b1cdbd2cSJim Jagielski * @param nFlags [in] flags; usually 0. 114*b1cdbd2cSJim Jagielski * 115*b1cdbd2cSJim Jagielski * @return pointer to rtl_arena_type, or NULL upon failure. 116*b1cdbd2cSJim Jagielski * 117*b1cdbd2cSJim Jagielski * @see rtl_arena_destroy() 118*b1cdbd2cSJim Jagielski */ 119*b1cdbd2cSJim Jagielski rtl_arena_type * 120*b1cdbd2cSJim Jagielski SAL_CALL rtl_arena_create ( 121*b1cdbd2cSJim Jagielski const char * pName, 122*b1cdbd2cSJim Jagielski sal_Size quantum, 123*b1cdbd2cSJim Jagielski sal_Size quantum_cache_max, 124*b1cdbd2cSJim Jagielski rtl_arena_type * source_arena, 125*b1cdbd2cSJim Jagielski void * (SAL_CALL * source_alloc)(rtl_arena_type *, sal_Size *), 126*b1cdbd2cSJim Jagielski void (SAL_CALL * source_free) (rtl_arena_type *, void *, sal_Size), 127*b1cdbd2cSJim Jagielski int nFlags 128*b1cdbd2cSJim Jagielski ) SAL_THROW_EXTERN_C(); 129*b1cdbd2cSJim Jagielski 130*b1cdbd2cSJim Jagielski 131*b1cdbd2cSJim Jagielski /** rtl_arena_destroy() 132*b1cdbd2cSJim Jagielski * 133*b1cdbd2cSJim Jagielski * @param pArena [in] the arena to destroy. 134*b1cdbd2cSJim Jagielski * @return None 135*b1cdbd2cSJim Jagielski * 136*b1cdbd2cSJim Jagielski * @see rtl_arena_create() 137*b1cdbd2cSJim Jagielski */ 138*b1cdbd2cSJim Jagielski void 139*b1cdbd2cSJim Jagielski SAL_CALL rtl_arena_destroy ( 140*b1cdbd2cSJim Jagielski rtl_arena_type * pArena 141*b1cdbd2cSJim Jagielski ) SAL_THROW_EXTERN_C(); 142*b1cdbd2cSJim Jagielski 143*b1cdbd2cSJim Jagielski 144*b1cdbd2cSJim Jagielski /** rtl_arena_alloc() 145*b1cdbd2cSJim Jagielski * 146*b1cdbd2cSJim Jagielski * @param pArena [in] arena from which resource is allocated. 147*b1cdbd2cSJim Jagielski * @param pBytes [inout] size of resource to allocate. 148*b1cdbd2cSJim Jagielski * 149*b1cdbd2cSJim Jagielski * @return allocated resource, or NULL upon failure. 150*b1cdbd2cSJim Jagielski * 151*b1cdbd2cSJim Jagielski * @see rtl_arena_free() 152*b1cdbd2cSJim Jagielski */ 153*b1cdbd2cSJim Jagielski void * 154*b1cdbd2cSJim Jagielski SAL_CALL rtl_arena_alloc ( 155*b1cdbd2cSJim Jagielski rtl_arena_type * pArena, 156*b1cdbd2cSJim Jagielski sal_Size * pBytes 157*b1cdbd2cSJim Jagielski ) SAL_THROW_EXTERN_C(); 158*b1cdbd2cSJim Jagielski 159*b1cdbd2cSJim Jagielski 160*b1cdbd2cSJim Jagielski /** rtl_arena_free() 161*b1cdbd2cSJim Jagielski * 162*b1cdbd2cSJim Jagielski * @param pArena [in] arena from which resource was allocated. 163*b1cdbd2cSJim Jagielski * @param pAddr [in] resource to free. 164*b1cdbd2cSJim Jagielski * @param nBytes [in] size of resource. 165*b1cdbd2cSJim Jagielski * 166*b1cdbd2cSJim Jagielski * @return None. 167*b1cdbd2cSJim Jagielski * 168*b1cdbd2cSJim Jagielski * @see rtl_arena_alloc() 169*b1cdbd2cSJim Jagielski */ 170*b1cdbd2cSJim Jagielski void 171*b1cdbd2cSJim Jagielski SAL_CALL rtl_arena_free ( 172*b1cdbd2cSJim Jagielski rtl_arena_type * pArena, 173*b1cdbd2cSJim Jagielski void * pAddr, 174*b1cdbd2cSJim Jagielski sal_Size nBytes 175*b1cdbd2cSJim Jagielski ) SAL_THROW_EXTERN_C(); 176*b1cdbd2cSJim Jagielski 177*b1cdbd2cSJim Jagielski 178*b1cdbd2cSJim Jagielski /** Opaque rtl_cache_type. 179*b1cdbd2cSJim Jagielski */ 180*b1cdbd2cSJim Jagielski typedef struct rtl_cache_st rtl_cache_type; 181*b1cdbd2cSJim Jagielski 182*b1cdbd2cSJim Jagielski #define RTL_CACHE_NAME_LENGTH 31 183*b1cdbd2cSJim Jagielski 184*b1cdbd2cSJim Jagielski #define RTL_CACHE_FLAG_BULKDESTROY 1 185*b1cdbd2cSJim Jagielski 186*b1cdbd2cSJim Jagielski /** rtl_cache_create() 187*b1cdbd2cSJim Jagielski * 188*b1cdbd2cSJim Jagielski * @param pName [in] descriptive name; for debugging purposes. 189*b1cdbd2cSJim Jagielski * @param nObjSize [in] object size. 190*b1cdbd2cSJim Jagielski * @param nObjAlign [in] object alignment; usually 0 for suitable default. 191*b1cdbd2cSJim Jagielski * @param constructor [in] object constructor callback function; returning 1 for success or 0 for failure. 192*b1cdbd2cSJim Jagielski * @param destructor [in] object destructor callback function. 193*b1cdbd2cSJim Jagielski * @param reclaim [in] reclaim callback function. 194*b1cdbd2cSJim Jagielski * @param pUserArg [in] opaque argument passed to callback functions. 195*b1cdbd2cSJim Jagielski * @param nFlags [in] flags. 196*b1cdbd2cSJim Jagielski * 197*b1cdbd2cSJim Jagielski * @return pointer to rtl_cache_type, or NULL upon failure. 198*b1cdbd2cSJim Jagielski * 199*b1cdbd2cSJim Jagielski * @see rtl_cache_destroy() 200*b1cdbd2cSJim Jagielski */ 201*b1cdbd2cSJim Jagielski rtl_cache_type * 202*b1cdbd2cSJim Jagielski SAL_CALL rtl_cache_create ( 203*b1cdbd2cSJim Jagielski const char * pName, 204*b1cdbd2cSJim Jagielski sal_Size nObjSize, 205*b1cdbd2cSJim Jagielski sal_Size nObjAlign, 206*b1cdbd2cSJim Jagielski int (SAL_CALL * constructor)(void * pObj, void * pUserArg), 207*b1cdbd2cSJim Jagielski void (SAL_CALL * destructor) (void * pObj, void * pUserArg), 208*b1cdbd2cSJim Jagielski void (SAL_CALL * reclaim) (void * pUserArg), 209*b1cdbd2cSJim Jagielski void * pUserArg, 210*b1cdbd2cSJim Jagielski rtl_arena_type * pSource, 211*b1cdbd2cSJim Jagielski int nFlags 212*b1cdbd2cSJim Jagielski ) SAL_THROW_EXTERN_C(); 213*b1cdbd2cSJim Jagielski 214*b1cdbd2cSJim Jagielski 215*b1cdbd2cSJim Jagielski /** rtl_cache_destroy() 216*b1cdbd2cSJim Jagielski * 217*b1cdbd2cSJim Jagielski * @param pCache [in] the cache to destroy. 218*b1cdbd2cSJim Jagielski * 219*b1cdbd2cSJim Jagielski * @return None. 220*b1cdbd2cSJim Jagielski * 221*b1cdbd2cSJim Jagielski * @see rtl_cache_create() 222*b1cdbd2cSJim Jagielski */ 223*b1cdbd2cSJim Jagielski void 224*b1cdbd2cSJim Jagielski SAL_CALL rtl_cache_destroy ( 225*b1cdbd2cSJim Jagielski rtl_cache_type * pCache 226*b1cdbd2cSJim Jagielski ) SAL_THROW_EXTERN_C(); 227*b1cdbd2cSJim Jagielski 228*b1cdbd2cSJim Jagielski 229*b1cdbd2cSJim Jagielski /** rtl_cache_alloc() 230*b1cdbd2cSJim Jagielski * 231*b1cdbd2cSJim Jagielski * @param pCache [in] cache from which object is allocated. 232*b1cdbd2cSJim Jagielski * 233*b1cdbd2cSJim Jagielski * @return pointer to allocated object, or NULL upon failure. 234*b1cdbd2cSJim Jagielski */ 235*b1cdbd2cSJim Jagielski void * 236*b1cdbd2cSJim Jagielski SAL_CALL rtl_cache_alloc ( 237*b1cdbd2cSJim Jagielski rtl_cache_type * pCache 238*b1cdbd2cSJim Jagielski ) SAL_THROW_EXTERN_C(); 239*b1cdbd2cSJim Jagielski 240*b1cdbd2cSJim Jagielski 241*b1cdbd2cSJim Jagielski /** rtl_cache_free() 242*b1cdbd2cSJim Jagielski * 243*b1cdbd2cSJim Jagielski * @param pCache [in] cache from which object was allocated. 244*b1cdbd2cSJim Jagielski * @param pObj [in] object to free. 245*b1cdbd2cSJim Jagielski * 246*b1cdbd2cSJim Jagielski * @return None. 247*b1cdbd2cSJim Jagielski * 248*b1cdbd2cSJim Jagielski * @see rtl_cache_alloc() 249*b1cdbd2cSJim Jagielski */ 250*b1cdbd2cSJim Jagielski void 251*b1cdbd2cSJim Jagielski SAL_CALL rtl_cache_free ( 252*b1cdbd2cSJim Jagielski rtl_cache_type * pCache, 253*b1cdbd2cSJim Jagielski void * pObj 254*b1cdbd2cSJim Jagielski ) SAL_THROW_EXTERN_C(); 255*b1cdbd2cSJim Jagielski 256*b1cdbd2cSJim Jagielski 257*b1cdbd2cSJim Jagielski #ifdef __cplusplus 258*b1cdbd2cSJim Jagielski } 259*b1cdbd2cSJim Jagielski #endif 260*b1cdbd2cSJim Jagielski 261*b1cdbd2cSJim Jagielski #endif /*_RTL_ALLOC_H_ */ 262*b1cdbd2cSJim Jagielski 263